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Sillimanite Special Brick

Sillimanite Special Brick

Cold Crushing Strength:≥45 Mpa

0.2Mpa Refractoriness Under Load T0.6:≥1550℃

Permanent Linear Change On Reheating (%)1500℃X2h:±0.1

Thermal Shock Resistances 100℃ water cycles:≥20

Reversible Thermal Expansion 1000℃:0.55

Pyrometric Cone Equivalent S.C.SK:35

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Silimanite brick is a kind of refractoriness which made by silimaniteand other minerals. And silimanite can be transformed to be mullite under more 1500℃ high temprature.
Silimanite brick are mainly used in high temprature furnaces, such as glass melting furnace,etc.

The main applications are:
◆ Rider arches
◆ Forehearth superstracture
◆ Bushing for rochwool and fiber glass

◆ Dense structure
◆ Good thermal shock resistance

◆ Corrosion-resistant
◆ High quality

Technical Data

Item GXS-50 GXS-60
Chemical composition Al2O3 ≥50 ≥60


SiO2 ≤45 ≤38


Fe2O3 ≤1.2 ≤1.0
Apparent Porosity (%) ≤18 ≤18
Bulk Density (g/cm3) ≥2.4 ≥2.5
Cold Crushing Strength (Mpa) ≥45 ≥50
0.2Mpa Refractoriness Under Load T0.6 (℃) ≥1550 ≥1600
Permanent Linear Change On Reheating (%) 1500℃X2h ±0.1 ±0.1
Thermal Shock Resistances 100℃ water cycles ≥20 ≥20
Reversible Thermal Expansion 1000℃ 0.55 0.6
Pyrometric Cone Equivalent S.C. SK 35 36
Range of Application Rider Arches Superstructure forehearth


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